CVE-2023-0455: Unrestricted Upload of File with Dangerous Type in GitHub repository unilogies/bumsys prior to v1.0.3-beta.

This month

HIGH 8.8DOWNGRADE

CVE-2023-0455 is a high-severity flaw (CVSS 8.8) affecting bumsys. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted Upload of File with Dangerous Type in GitHub repository unilogies/bumsys prior to v1.0.3-beta.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	5.7% (top 7%)
CISA exploited list	No
Weakness	CWE-434
Published	2023-01-26
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: bumsys project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-26 22:15 UTCPublished CVE record published
2026-06-17 05:25 UTCUpdated Record last modified

bumsys project bumsys DOWNGRADE

Affected: 1.0.0 beta · 1.0.1 · 1.0.2 beta

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy bumsys || rpm -q bumsys || bumsys --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison bumsys sudo apt install bumsys=<VERSION_BEFORE_1.0.0> sudo apt-mark hold bumsys

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list bumsys sudo dnf downgrade bumsys-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add bumsys

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: unilogies/bumsys v1.0.3 beta - Unrestricted File Upload

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-0455?

bumsys: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-0455 being exploited?

CVE-2023-0455 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-0455 affect?

CVE-2023-0455 affects bumsys. Severity is high (CVSS 8.8). Unrestricted Upload of File with Dangerous Type in GitHub repository unilogies/bumsys prior to v1.0.3-beta.

How urgent is CVE-2023-0455?

Priority 59/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Software pages

GitHub vulnerabilities

Related CVEs

CVE-2023-2832 HIGH 7.2 UPGRADE SQL Injection in GitHub repository unilogies/bumsys prior to 2.2.0.
CVE-2023-2554 HIGH 7.2 UPGRADE External Control of File Name or Path in GitHub repository unilogies/bumsys prior to 2.2.0.
CVE-2023-2553 MEDIUM 5.4 UPGRADE Cross-site Scripting (XSS) - Stored in GitHub repository unilogies/bumsys prior to 2.2.0.
CVE-2023-2552 HIGH 8.8 UPGRADE Cross-Site Request Forgery (CSRF) in GitHub repository unilogies/bumsys prior to 2.1.1.
CVE-2023-2551 HIGH 8.8 UPGRADE PHP Remote File Inclusion in GitHub repository unilogies/bumsys prior to 2.1.1.

References

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